EP2623997B1 - Détermination d'une phase et d'une fréquence de quantité électrique d'un dispositif électrique de fonctionnement - Google Patents

Détermination d'une phase et d'une fréquence de quantité électrique d'un dispositif électrique de fonctionnement Download PDF

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Publication number
EP2623997B1
EP2623997B1 EP12153782.3A EP12153782A EP2623997B1 EP 2623997 B1 EP2623997 B1 EP 2623997B1 EP 12153782 A EP12153782 A EP 12153782A EP 2623997 B1 EP2623997 B1 EP 2623997B1
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EP
European Patent Office
Prior art keywords
frequency
phase
electric quantity
determining
stage
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EP12153782.3A
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German (de)
English (en)
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EP2623997A1 (fr
Inventor
Heng DENG
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Siemens AG
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Siemens AG
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Priority to EP12153782.3A priority Critical patent/EP2623997B1/fr
Priority to US14/359,585 priority patent/US9753067B2/en
Priority to PCT/EP2013/052066 priority patent/WO2013113891A1/fr
Priority to CN201380007671.4A priority patent/CN104081654B/zh
Publication of EP2623997A1 publication Critical patent/EP2623997A1/fr
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Publication of EP2623997B1 publication Critical patent/EP2623997B1/fr
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R25/00—Arrangements for measuring phase angle between a voltage and a current or between voltages or currents
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381—Dispersed generators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/40—Synchronising a generator for connection to a network or to another generator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
    • H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/28—The renewable source being wind energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/76—Power conversion electric or electronic aspects

Definitions

  • the present invention relates to the technical field of controlling electrical devices, such as an electrical machine or a power grid.
  • the present invention relates to a method for determining a phase and a frequency of an electric quantity being associated with an operation of an electrical device.
  • the invention relates to an apparatus for determining a phase and a frequency of an electric quantity being associated with an operation of an electrical device.
  • the invention relates to a frequency converter for electrically connecting an electric power generating machine.
  • the invention relates to a wind turbine comprising such an apparatus and to a computer program configured for determining a phase and a frequency of an electric quantity being associated with an operation of an electrical device.
  • an actual phase and an actual frequency of an electric quantity being associated with the operation of the electrical device may be important control parameters.
  • a rotor position and/or a rotor speed may be important parameters for controlling the operation of an electrical machine.
  • the rotor speed and the rotor position need to be determined.
  • the rotor position and the rotor speed may be determined by an encoder or by an estimator.
  • An encoder is a hardware sensor which generates pulses when the electrical machine is rotating. Based on a period between the pulses, the rotor position and the rotor speed can be calculated. Particularly, encoders are widely used in electrical generators of wind turbines.
  • An estimator estimates the rotor position and the rotor speed based on a model of the electrical machine by using measured electrical quantities of the electrical machine.
  • an estimator may be implemented in an inverter software of the electrical machine.
  • An advantage of the estimator is that it may merely be realized as software.
  • the estimator may have lower maintenance costs and may be more reliable than the encoder.
  • the measured electrical quantities of the electrical machine may comprise higher harmonic components due to production tolerances and/or a design of the electrical machine.
  • the estimator is designed based on the assumption that the measured electrical quantities have ideal waveforms, for example sinusoidal waveforms.
  • the higher harmonic components of the measured electrical quantities of the electrical machine may affect the accuracy of the rotor position and rotor speed estimation.
  • an error of in the determined rotor position and rotor speed can significantly affect an efficiency of the electrical machine, for example a generator or a converter.
  • WO 2011/037537 A2 discloses a method for controlling a power converter in a wind turbine generator, wherein the power converter is connected to a power grid.
  • the method comprises (a) obtaining an alternating current line voltage at a connection point between the power converter and the power grid, (b) obtaining a frequency of the power grid based on the AC line voltage, (c) dynamically adapting the AC line voltage to the frequency of the power grid, (d) generating a reference signal based on at least the frequency-adapted AC line voltage, and (e) determining a converter control signal to be provided to the power converter based on the reference signal and the grid frequency in order to generate a power at the frequency of the power grid.
  • US 7,940,131 B2 discloses an apparatus for rapidly tracking fundamental frequency information in the signal of an electric grid, wherein the apparatus comprises a crosscoupled phase-lock loop filter that includes the use of a phase-lock-loop apparatus having a plurality individual filters.
  • An input for a first filter in the plurality of individual filters comprises the signal of the electric grid and an output signal from at least a second filter of the plurality of individual filters.
  • Equation Sags Ride-Trough of Motion Sensorless Controlled PMSG for Wind Turbines describes a variable-speed motion-sensorless permanent magnet synchronous generator (PMSG) control system for wind energy generation.
  • the described system contains a PMSG connected to a grid by a back to back PWM inverter with a bidirectional flow, a line filter, and a transformer.
  • the PMSG rotor speed and the line voltage frequency are estimated by two PLL based observers.
  • a D-module filter is used to estimate the grid voltage positive-sequence for control in the case of asymmetric voltages.
  • Lie Xu (“Dynamic Modeling and Control of DFIG-Based Wind Turbines Under Unbalanced Network Conditions”) discloses an analysis and control design of a doubly-fed induction generator (DFIG)-based wind generation system operating under unbalanced network conditions.
  • a rotor current control strategy based on positive and negative (dq) reference frames is used to provide control of the rotor positive and negative sequence currents.
  • D4 further discloses that a band-trap filter tuned at twice the line frequency can be used to remove the negative sequence components.
  • a method for determining a phase and a frequency of an electric quantity being associated with an operation of an electrical device comprises extracting a fundamental component of the electric quantity, calculating a positive sequence component of the electric quantity based on the extracted fundamental component, and determining the phase and the frequency of the electric quantity based on the calculated positive sequence component.
  • the electrical device may be a power grid or an electrical machine, for example an electrical generator or an electrical motor. Further, the electrical device may be a generator of a wind turbine. In particular, the electrical device may be an induction generator or a permanent magnet generator.
  • the electric quantity being associated with the operation of the electrical device may be a current and/or a voltage.
  • the electric quantity may be a generator current and/or a generator voltage.
  • the electric quantity may be a voltage of a power grid and/or a current of a power grid.
  • the electric quantity being associated with the operation of the electrical device may be an electric quantity which is indicative for a voltage and/or current in a generator or a power grid.
  • the electric quantity may have a periodic waveform, for example a sinusoidal waveform.
  • the electric quantity may be directly and/or indirectly measureable by a suitable sensor. However, due to switching procedure in the electrical device and design of electrical device the electric quantity may have addition harmonic components.
  • the phase of the electric quantity may be indicative for a phase of the voltage in the power grid and the frequency of the electric quantity may be indicative for a frequency of the voltage in the power grid.
  • the phase of the electric quantity may be indicative for a phase of a rotor of the electrical machine and the frequency of the electric quantity may be indicative for a frequency of the rotor of the electrical machine.
  • the phase of the rotor may be indicative for a rotor angle and the frequency of the rotor may be indicative for a speed of the rotor.
  • the fundamental component may be a fundamental frequency of a periodic waveform.
  • the fundamental frequency may be the lowest frequency of the periodic waveform.
  • the fundamental component may be extracted from the electric quantity by means of a Fourier analyses and/or an electronic filter procedure.
  • the electronic filter procedures may be an analog filter procedure and/or a digital filter procedure.
  • the three-phase electrical power system is thereby expressed by a positive sequence component, a negative sequence component and a zero sequence component.
  • the positive sequence component describes a system or field which rotates in the same direction as the original three-phase electrical power system.
  • the negative sequence component describes a system or field which rotates in the opposite direction compared to the rotational direction of the original three-phase electrical power system, and the zero sequence component describes a system or field that oscillates but does not rotate.
  • the advantage of the described method may be that an encoder can be omitted. This may reduce a cost of the electrical device. Furthermore, the described method may allow for a robustly determination of a phase and a frequency of an electric quantity being associated with an operation of an electrical device. This may provide the advantage that a vector control of an electrical machine can be improved. The described method may be implementable without any additional costs and/or without any change of hardware requirements of available electrical devices. The described method may allow for a more precise determination of the phase and the frequency of the electric quantity being associated with the operation of the electrical machine over a wide range of frequencies. Further, the described method may allow for a release of requirements for a generator design.
  • the phase of the electric quantity may be indicative for a phase of an electrical power or an electrical voltage in the power grid and the frequency of the electric quantity may be indicative for a frequency of the electrical power or an electrical voltage in the power grid.
  • the electric quantity may be a grid voltage.
  • the electrical device may be an electrical machine.
  • the electrical machine may be an electrical generator or an electrical motor.
  • An electrical machine may comprise a rotor with at least one rotor coil and/or a stator with at least one stator coil.
  • the electrical device may be a generator of a wind turbine.
  • the electrical device may be an induction generator or a permanent magnet generator.
  • the described method may provide the advantage that a control of the electrical machine may be improved. In particular, for an efficient control of the electrical machine a precise knowledge of the electrical angle and the speed of a rotor of the electrical machine may be necessary. It may also be possible to use the described method for estimating an electrical angle and a speed of a rotor of an electrical motor. In particular, the phase of the electric quantity may be indicative for the electrical angle and the frequency of the electric quantity may be indicative for the speed of the rotor.
  • the electric quantity is a counter electromotive force.
  • the counter electromotive force which is also called back electromotive force, may be an electromotive force which pushes against the current which induces it.
  • the counter electromotive force may be caused by a changing electromagnetic field.
  • the counter electromotive force may allow for an indirect measurement of a quantity associated with the operation of the electric device, for example a generator voltage of a wind turbine generator.
  • An indirect measurement of the counter electromotive force may provide the advantage that a perturbation of the measured system may only be small.
  • the counter electromotive force may be determined by means of a Kalman filter.
  • the Kalman filter may allow for an efficient determining of the counter electromotive force.
  • the counter electromotive force may be determined in a stationary abc frame.
  • the counter electromotive force may as well be determined in a so called ⁇ frame.
  • the ⁇ frame may allow a simplified calculation based on only two parameters as compared to the abc frame based on three parameters.
  • the abc frame and the ⁇ frame may be connected by Clarke transformation.
  • Determining the counter electromotive force may be carried out by means of an observer.
  • the observer may allow for an indirect determining of the counter electromotive force.
  • the observer may determine the counter electromotive force in the abc frame or in the ⁇ frame.
  • the fundamental component may be extracted by means of an adaptive band pass filter and/or a low pass filter. This may provide the advantage that the fundamental component may be determined in a simple and robust manner.
  • Calculating the positive sequence component may comprise obtaining a phase shifted component which has a 90 degree phase shift to the extracted fundamental component.
  • the extracted fundamental component may be transformed into the ⁇ frame by Clarke transformation before calculating the positive sequence component.
  • the fundamental component in ⁇ frame may be given by vector components V ⁇ 1 and V ⁇ 1 .
  • the phase shifted component which has a 90 degree phase shift to the extracted fundamental component V ⁇ 1 and V ⁇ 1 may be given by V' ⁇ 1 and V' ⁇ 1 .
  • a gain may be determined based on the determined frequency of the electric quantity.
  • the phase and the frequency of the electric quantity may be determined by means of a Phase Lock Loop.
  • a Phase Lock Loop may provide an efficient and robust way for determining a phase and a frequency of a signal.
  • the electrical device is an electrical generator
  • the phase and the frequency of the electric quantity e.g. the counter electromotive force, may be proportional to a rotor phase and a rotor frequency.
  • An apparatus for determining a phase and a frequency of an electric quantity being associated with an operation of an electrical device comprises an extracting unit configured for extracting a fundamental component of the electric quantity, a calculating unit configured for calculating a positive sequence component of the electric quantity based on the extracted fundamental component, and a determining unit configured for determining the phase and the frequency of the electric quantity based on the calculated positive sequence component.
  • the determining unit may comprise a Phase Lock Loop. More particularly, the Phase Lock Loop may comprise a proportional-integral controller which may determine a bandwidth of the determining unit. More particularly, the extracting unit, the calculating unit, and the determining unit may also be realized as a single unit. Moreover, the described apparatus may be implemented in a controller of the electrical device.
  • the apparatus further comprises a further determining unit configured for determining a counter electromotive force being associated with the electrical device.
  • determining the counter electromotive force may allow for an indirect measurement of a quantity associated with the operation of the electric device, for example a generator voltage of a wind turbine generator.
  • An indirect measurement of the counter electromotive force may provide the advantage that a perturbation of the measured system may only be small.
  • a frequency converter for electrically connecting an electric power generating machine, in particular a generator of a wind turbine, with a power grid.
  • the frequency converter comprises an AC-to-DC stage for converting a first AC power signal being generated by the electric power generating machine into a DC power signal, a DC-to-AC stage for converting the DC power signal into a second AC power signal being received from the power grid, and the above described apparatus, wherein the apparatus is assigned to the AC-to-DC stage or to the DC-to-AC stage.
  • the apparatus may be assigned to the AC-to-DC stage or to the DC-to-AC stage by a switch.
  • the described frequency converter may provide the advantage that it allows for an efficient determining of a phase and a frequency of the power grid and/or the generator.
  • the apparatus may determine a phase and a frequency of an electric quantity being associated with an operation of the electric power generating machine.
  • the apparatus may determine a phase and a frequency of an electric quantity being associated with the power grid.
  • a wind turbine comprises the above described frequency converter.
  • the frequency converter may determine the phase and the frequency of the generator of the wind turbine. Further, the determined phase and frequency of the generator may be send to a generator controller which regulates a rotor frequency of the generator.
  • FIG. 1 shows a wind turbine 100 according to an exemplary aspect.
  • the wind turbine 100 comprises a rotor 102 with rotor blades 104.
  • the rotor 102 is connected to a generator 108 by a gear box 106.
  • the gear box 106 may be omitted.
  • the generator 108 of the wind turbine 100 is electrically connected with a power grid 128 by a frequency converter 110 and a transformer 126.
  • the frequency converter comprises an AC-to-DC stage 112 for converting a first AC power signal being generated by the generator 108 into a DC power signal.
  • the frequency converter 110 further comprises a DC-to-AC stage 114 for converting the DC power signal into a second AC power signal being received from the power grid 128 via a transformer 126.
  • the frequency converter 110 comprises an apparatus 116 for determining a phase and a frequency of an electric quantity being associated with an operation of an electrical device.
  • the apparatus 116 may either be assigned to the AC-to-DC stage 112 or to the DC-to-AC stage 114.
  • the apparatus 116 may determine a phase ⁇ and a frequency ⁇ of an electric quantity being associated with an operation of the generator 108 when assigned to the AC-to-DC stage 112. Further, the apparatus 116 may determine a phase ⁇ and a frequency ⁇ of the power grid 128 when assigned to the DC-to-AC stage 114.
  • the apparatus 116 comprises an extracting unit 118 configured for extracting a fundamental component V ⁇ 1 , V ⁇ 1 of the electric quantity. Further, the apparatus 116 comprises a calculating unit 120 configured for calculating a positive sequence component V + ⁇ 1 and V + ⁇ 1 of the electric quantity based on the extracted fundamental components V ⁇ 1 and V ⁇ 1 . The apparatus 116 also comprises a determining unit 122 configured for determining the phase ⁇ and the frequency ⁇ of the electric quantity based on the calculated positive sequence components V + ⁇ 1 and V + ⁇ 1 . Furthermore, the apparatus comprises a further determining unit 124 configured for determining a counter electromotive force V ⁇ , Vp being associated with the electrical device.
  • FIG. 2 shows an underlying control architecture of the apparatus 116 according to an exemplary embodiment.
  • I abc and U abc represent the electric quantity being associated with an operation of an electrical device, namely the generator current I abc and the generator Voltage U abc .
  • the generator voltage may be measured by a coil which is arranged at a stator of the generator 108.
  • Another option for obtaining the generator voltage U abc may be to calculate the generator voltage U abc from internal control variables of the frequency converter 110.
  • the generator voltage U abc and/or the generator current I abc may comprise high-frequency harmonic components. This may be overcome be obtaining an average voltage value and/or an average current value using a sampling procedure of the generator voltage U abc and/or the generator current I abc , respectively. Furthermore, it may also be possible to remove high-frequency harmonics on the generator voltage and/or on the generator current by means of analog and/or digital filters.
  • the further determining unit 124 is configured for determining a counter electromotive force being associated with generator voltage U abc and/or the generator current I abc by means of an observer or a Kalman filter.
  • the determined counter electromotive force is then transformed by a Clarke transformation from the abc frame into the ⁇ frame.
  • the transformed counter electromotive force components V ⁇ 1 , V ⁇ 1 are further processed by the calculating unit 120.
  • the calculating unit 120 is configured for calculating the positive sequence components V + ⁇ 1 , V + ⁇ 1 of the electric quantity based on the counter electromotive force components V ⁇ 1 , V ⁇ 1 .
  • the positive sequence components V + ⁇ 1 , V + ⁇ 1 are transformed in the abc frame by an inverse Clarke transformation.
  • the positive sequence components V + ⁇ 1 , V + b1 , and V + c1 in abc frame are further processed by the determining unit 122 which is configured for determining the phase ⁇ and the frequency ⁇ of the electric quantity based on the calculated positive sequence components V + ⁇ 1 , V + b1 , and V + c1 .
  • a feedback loop may be used to provide the further determining unit 124, the determining unit 118, and the calculating unit 120 with the determined frequency ⁇ of the electric quantity in order to improve an accuracy of the determined phase ⁇ and frequency ⁇ .
  • FIG. 3 shows an underlying control architecture of the extracting unit 118 and the calculating unit 120 according to an exemplary embodiment.
  • the extracting unit 118 is configured for extracting fundamental components V ⁇ 1 and V ⁇ 1 of the counter electromotive force components V ⁇ , Vp by means of an adaptive band pass filter and/or a low pass filter 118a.
  • phase shifted components V' ⁇ 1 and V' ⁇ 1 are obtained, which have a 90 degree phase shift to the extracted fundamental components V ⁇ 1 and V ⁇ 1 .
  • a gain may be determined based on the determined frequency of the electric quantity.
  • the unit 120a may be configured to determine the gain based on the determined frequency of the electric quantity.
  • the calculating unit 120 is further configured for calculating positive sequence components V + ⁇ 1 , V + ⁇ 1 of the electric quantity based on the extracted fundamental components V ⁇ 1 and V ⁇ 1 and the phase shifted components V' ⁇ 1 and V' ⁇ 1 , as indicated with reference numeral 120b.
  • V + ⁇ 1 , V + ⁇ 1 are then transformed from the ⁇ frame into the abc frame by an inverse Clarke transformation T -1 ⁇ .
  • Figure 4 shows an underlying control architecture of the determining unit 122 according to an exemplary embodiment.
  • the obtained positive sequence components V + ⁇ 1 , V + b1 , V + c1 in abc frame are transformed into an dq-frame by a dq transformation or Park transformation T dq .
  • the frequency ⁇ and the phase ⁇ of the generator voltage U abc and the generator current I abc are derived from the transformed positive sequence components V + d1 , V + q1 , as indicated by reference numerals 122a and 122b, for example by means of a phase lock loop.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Eletrric Generators (AREA)
  • Wind Motors (AREA)

Claims (7)

  1. Convertisseur de fréquence (110) destiné à relier électriquement une machine génératrice d'énergie électrique, en particulier une génératrice (108) d'éolienne (100), à un réseau électrique (128), le convertisseur de fréquence (110) comprenant :
    un étage CA-CC (112) destiné à convertir un premier signal CA (courant alternatif) produit par la machine génératrice d'énergie électrique (108) en un signal CC (courant continu),
    un étage CC-CA (114) destiné à convertir le signal CC en un second signal CA reçu en provenance du réseau électrique (128),
    un appareil (116) destiné à déterminer une phase (θ) et une fréquence (ω) de grandeur électrique associée à un fonctionnement de dispositif électrique, l'appareil (116) comprenant :
    une unité d'extraction (118) conçue pour extraire une composante fondamentale de la grandeur électrique ;
    une unité de calcul (120) conçue pour calculer une composante de séquence positive de la grandeur électrique, sur la base de la composante fondamentale extraite ; et
    une unité de détermination (122) conçue pour déterminer la phase et la fréquence de la grandeur électrique, sur la base de la composante de séquence positive calculée,
    dans lequel l'appareil est affecté en alternance à l'étage CA-CC (112) ou à l'étage CC-CA (114) par un commutateur, et
    une unité de détermination supplémentaire (124) conçue pour, lorsque l'appareil est affecté à l'étage CA-CC (112), déterminer une force contre-électromotrice associée au dispositif électrique, dans lequel :
    - lorsque l'appareil est affecté à l'étage CC-CA (114), le dispositif électrique est le réseau électrique (128), et
    - lorsque l'appareil est affecté à l'étage CA-CC (112), le dispositif électrique est la machine génératrice d'énergie électrique (108).
  2. Convertisseur de fréquence (110) selon la revendication 1, dans lequel l'unité de détermination supplémentaire (124) est conçue pour déterminer la force contre-électromotrice au moyen d'un filtre de Kalman.
  3. Convertisseur de fréquence (110) selon la revendication 1 ou 2, dans lequel l'unité de détermination supplémentaire (124) est conçue pour déterminer la force contre-électromotrice au moyen d'un observateur.
  4. Convertisseur de fréquence selon l'une quelconque des revendications précédentes, dans lequel la composante fondamentale est extraite au moyen d'un filtre passe-bande adaptatif et/ou d'un filtre passe-bas (118a).
  5. Convertisseur de fréquence selon l'une quelconque des revendications précédentes, dans lequel le calcul de la composante de séquence positive comprend l'obtention d'une composante déphasée qui a un déphasage de 90 degrés par rapport à la composante fondamentale extraite.
  6. Convertisseur de fréquence selon l'une quelconque des revendications précédentes, dans lequel la phase (θ) et la fréquence (w) de la grandeur électrique sont déterminées au moyen d'une boucle à verrouillage de phase.
  7. Éolienne (100) comprenant un convertisseur de fréquence (110) selon l'une quelconque des revendications précédentes.
EP12153782.3A 2012-02-03 2012-02-03 Détermination d'une phase et d'une fréquence de quantité électrique d'un dispositif électrique de fonctionnement Active EP2623997B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP12153782.3A EP2623997B1 (fr) 2012-02-03 2012-02-03 Détermination d'une phase et d'une fréquence de quantité électrique d'un dispositif électrique de fonctionnement
US14/359,585 US9753067B2 (en) 2012-02-03 2013-02-01 Determining a phase and a frequency of an electric quantity of an operating electrical device
PCT/EP2013/052066 WO2013113891A1 (fr) 2012-02-03 2013-02-01 Détermination d'une phase et d'une fréquence d'une grandeur électrique d'un dispositif électrique en fonctionnement
CN201380007671.4A CN104081654B (zh) 2012-02-03 2013-02-01 确定操作电气设备的电量的相位和频率

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EP12153782.3A EP2623997B1 (fr) 2012-02-03 2012-02-03 Détermination d'une phase et d'une fréquence de quantité électrique d'un dispositif électrique de fonctionnement

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EP2623997A1 EP2623997A1 (fr) 2013-08-07
EP2623997B1 true EP2623997B1 (fr) 2018-01-03

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US (1) US9753067B2 (fr)
EP (1) EP2623997B1 (fr)
CN (1) CN104081654B (fr)
WO (1) WO2013113891A1 (fr)

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US9753067B2 (en) 2017-09-05
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EP2623997A1 (fr) 2013-08-07
CN104081654A (zh) 2014-10-01

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